Cock and the like.



R. KLIN GER.

000K AND THE LIKE.

APPLIOLTION rILnn 1mm, 1m.

Patented Sept. 20, 1910.

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M w M R. KLINGBR. 000K AND THE LIKE. APPLICATION FILED HAB- 9, 1909Patented Bept.20,1910."

3 SHEETS-SHEET 2- fiverzior' I fiz'ckardfllazgyer a 9 V, 3 M; u m Z 0aieimsn KLINGER, or GUMPOLDSKIRCHEN, NEAR VIENNA, AUSTRIA-HUNGARY.

COCK AND THE LIKE.

Specification of Letters Patent. Patented Sept. 20, 1910.

Application filed March 9, 1909. Serial No. 482,272.

To all tvhom it may concern:

Be 1t known that I, RICHARD KLINGER,

. subject of the Emperor of Austria-Hungary,

residing at Gumpoldskirchen, near Vienna, Lower Austria,Austrla-Hungary, have infollowing is a specification.

This invention relates to cocks or valves the shells or casings of whichare provided in the usual way with passages which open toward the plugand which are arranged between inwardly extending ribs that guide theplug.

The object of this invention is to permanently prevent with certaintyany leakage, as well as any looseness, when the plug is in the closedposition, without the provision of a stuffing box or gland for thespindle of the cock plug. For this purpose according to this inventioninstead of the shell casing being closed by a stu'liing box or gland itis closed by a cap formed with a hole into which the cone shaped end ofthe plug projects after the manner of a valve and the hole in theclosing cap is itself arranged to 1 be closed by a screw plug. In a cockso constructed suitable packing medium can be placed in the hole of theclosing cap and forced with great pressure, exerted from outside thecock, through the annular space between the inner wall of the cap andthe coned end of the plug and distributed uniformly in the passages ofthe cock shell or casing and after screwing the screw plug in the capthe packing medium can, in case of necessity, be pressed uniformlyagainst the parts of the plug to be packed by adjusting such screw plug.This pressure will be uniformly transmitted from all sides to thecircumference of the plug and insures perfect packing. When the packingmedium is worn the screw plug can be removed and a plug of packing canbe placed in the hole of the closing cap and forced into the cock shellby again screwing in the screw plug.

The accompanying illustrative drawing shows in Figure 1 in a centralvertical section a cock embodying this invention; Fig.

2 is a central horizontal section thereof, and

Fig. 3 shows the shell or casing of the cock without the plug in centralvertical section in a plane at right angles to that of Fig. 1; Fig. 4 isa similar view to Fig. 1 showing a modified form of cock according tothis invention.

1 is the shell or casing of the cock, 2 a hollow cylindrical plugmounted to rotate within it. Arranged symmetrically around the peripheryof the plug are vertical passages3 formed in the shell or casing 1 andopening toward the lug; vertical ribs 4 which act as guides or the plugseparate the passages one from the other. Certain of said ribs areformed with perforations 6 which are designed to register withdiametrically opposite ports 5 formed in the plug, such arrangementproviding for a flow of liquid through the cock when the plug is in itsopen position. The passages 3 are placed in free communication one withthe other at their upper and lower ends by hori zontal annular passages3', 3". The lower annular passage 3 surrounds an annular recess 9 formedin the cock shell or casing serving to support the lower end of the cockplug the spindle 10 of which projects outwardly through a hole 10 formedin the shell or casing concentric with the annular recess9 and passage3. Projectingthrough the upper annular passage 3 into a somewhat largescrew threaded opening 1 formed through the cock shell or casing is thecone-shaped upper end 2 of the plug. Screwed into this opening is aclosing cap 7 which is formed with a centrally arranged screw threadedhole to receive a screw plug 8 the lower end of such hole terminating ina cone shaped recess 7 that surrounds the conical inner end of the plug.

For the purpose of making a fluid tight joint between the plug and theshell or casing appropriate packing medium is forced through the hole ofthe closing cap 7 after such cap has been inserted in place, suchpacking medium passing through the annular space between the .cone ofthe plug and the inner wall of the cap into the horizontal annularpassage 3, thence into the vertical passages 3 and finally into theannular passage 3 and being compressed together by screwing in the screwplug 8. By this packing medium, which is under pressure as be forestated, the plug is pressed down into the recess 9 so that a leak cannottake place at this point; moreover the packing medium forced into thepassages 3 forms packing strips between the ribs 4 which lie closeagainst the periphery of the plug and when the cock is shut off, seeFig. 2, constitute a sure and lasting packing. By screwing the plug 8inwardly to an increased extent the packing can, in cases of necessity,be pressed more tightly, which may become necessary after long use ofthe cock, for the purpose of keeping the pressure of the packing mediumuniform on all sides of the plug and to the degree necessary foreffective packing.

In the construction shown in Fig. 4 the hollow plug is open at the topand the conical upper end 2 of the plug 2 is constructed as a separatepiece which is movable in the upper end of the plug body so that theplug body is forced by the pressure of the liquid flowing through thecock against a packing, placed in the recess 9 on the one hand and onthe other hand its upper end 2 is raised toward the conical recess 7' inthe central hole in the closing cap 7 and thereby compresses thelubricant situated within this hole. As in this case, the upper end 2 ofthe plug bears like a valve upon the wall of therecess 7 which acts as aseat, any leakage of steam which might arise between the plug and theribs 4 on the one hand and between the plug wall and the upper movableend 2 inserted therein on the other hand is prevented from escaping.

When the plug is in its closed position itis possible, in case ofnecessity, to periodically slightly tighten up the screw plug 8, the endof which is preferably hollowed out conically and thereby to exertthrough the medium of the plug of packing medium, a pressure upontheupper end 2 of the plug and force it down into its normal or originalposition in which a small annular space is left between the recess 7 andthe upper end 2 of the plug for the outlet of the packing medium intothe passages 3, 3 and 8".

Claim.

1. The'combination, in a cock, of a shell having a threaded opening inits upper end, and formed with interiorly located upper and lowerannular passages, and with spaced passages, andfor regulating thepressure of said packing upon said rotatable plug.

2. The combination, in a cock, of a shell having a threaded opening inits upper end, and formed with interiorly located upper and lowerannular passages, and with spaced vertical passages connecting the same,.said passages being adapted to receive packing; a cap threaded in saidopening and formed with a threaded bore into which the packing may beintroduced, said bore terminating at its lower end in a conical recess;a rotatable hollow plug fitted within said shell and comprising a bodymember and a top member movable therein, said top mem-- her being formedwith a conical end projecting into said recess, whereby the liquidflowing through the cock will force said members in opposite directions;and a plug threaded in said bore for forcing the packing between thewall of said recess and said conical end into the upper annular passageand thence into the other passages.

In testimony whereof I have hereunto set my handin presence of twosubscribing witnesses.

V RICHARD KLINGER.

lVitnesses J osnr RUBARDY, ROBERT W. 'HEINGARTNER.

